2 years ago

Look who’s back, back again. Can you help me?

Mathematics

2 answers:

Maksim231197 [3]2 years ago

7 0

Y=2x+8
Brainliest answer?

Neporo4naja [7]2 years ago

4 0

desmos is good for graphing problems

Step-by-step explanation:

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Qual o resultado da subtração dos dois polinômios abaixo? (2x2 + 4x) (–2x2 + x – 6)

Len [333]

Answer:

-4x^4-6x^3-8x^2-24x

Step-by-step explanation:

$\left(2x^2+4x\right)\left(-2x^2+x-6\right)\\$

distribuir parênteses

$=2x^2\left(-2x^2\right)+2x^2x+2x^2\left(-6\right)+4x\left(-2x^2\right)+4xx+4x\left(-6\right)$

Aplicar regras de menos mais ; $+\left(-a\right)=-a$

$=-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x$

simplificar

$-2\times\:2x^2x^2+2x^2x-2\times\:6x^2-4\times\:2x^2x+4xx-4\times\:6x:\\\quad -4x^4-6x^3-8x^2-24x$

7 0

2 years ago

Jeff needs to buy food and medication for six cats and one dog. The cost of food and medication for a cat is $5 less than two-th

Elodia [21]

Let x be the amount that Jeff spent for the food and medication of his dog. With this representation, the cost of food and medication for each cat is 2x/3 - 5. The equation that best represent the given situation is

x + 6(2x/3 - 5) = 195

The value of x from the equation is 45. Jeff spent $45

8 0

2 years ago

10 pounds of dog food.he feeds his dog 2/5 pounds

guajiro [1.7K]

Answer:

He fed his dog 4 pounds of dog food

2/5 = 40%

40% x 10 = 4

Step-by-step explanation:

6 0

2 years ago

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